/*
GNU LESSER GENERAL PUBLIC LICENSE
Copyright (C) 2006 The Lobo Project
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Contact info: lobochief@users.sourceforge.net
*/
/*
* Created on Oct 8, 2005
*/
package org.lobobrowser.html.domimpl;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.html.HTMLFrameElement;
import org.w3c.dom.html.HTMLIFrameElement;
import org.w3c.dom.html.HTMLLinkElement;
public interface NodeFilter {
public boolean accept(Node node);
static final class ImageFilter implements NodeFilter {
public boolean accept(final Node node) {
return "IMG".equalsIgnoreCase(node.getNodeName());
}
}
static final class AppletFilter implements NodeFilter {
public boolean accept(final Node node) {
// TODO: "OBJECT" elements that are applets too.
return "APPLET".equalsIgnoreCase(node.getNodeName());
}
}
static final class LinkFilter implements NodeFilter {
public boolean accept(final Node node) {
return node instanceof HTMLLinkElement;
}
}
static final class AnchorFilter implements NodeFilter {
public boolean accept(final Node node) {
final String nodeName = node.getNodeName();
return "A".equalsIgnoreCase(nodeName) || "ANCHOR".equalsIgnoreCase(nodeName);
}
}
static final class FormFilter implements NodeFilter {
public boolean accept(final Node node) {
final String nodeName = node.getNodeName();
return "FORM".equalsIgnoreCase(nodeName);
}
}
static final class FrameFilter implements NodeFilter {
public boolean accept(final Node node) {
return (node instanceof HTMLFrameElement) || (node instanceof HTMLIFrameElement);
}
}
// private class BodyFilter implements NodeFilter {
// public boolean accept(Node node) {
// return node instanceof org.w3c.dom.html2.HTMLBodyElement;
// }
// }
static final class ElementNameFilter implements NodeFilter {
private final String name;
public ElementNameFilter(final String name) {
this.name = name;
}
public boolean accept(final Node node) {
// TODO: Case sensitive?
return (node instanceof Element) && this.name.equals(((Element) node).getAttribute("name"));
}
}
static final class ElementFilter implements NodeFilter {
public ElementFilter() {
}
public boolean accept(final Node node) {
return node instanceof Element;
}
}
static final class TagNameFilter implements NodeFilter {
private final String name;
public TagNameFilter(final String name) {
this.name = name;
}
public boolean accept(final Node node) {
if (!(node instanceof Element)) {
return false;
}
final String n = this.name;
return n.equalsIgnoreCase(((Element) node).getTagName());
}
}
}